To go in Spanish is ir. It is very irregular verb so the normal rules for conjugating do not apply to it. It is easier to consider that the root for the preterit tense is fuir, although the pattern is not the one of regular verbs.We then have:Yo fui (I went)Tu fuiste (You singular went)El/Ella fue (He/She went)Nosotros fuimos (We went)Vosotros fuisteis (You plural went)Ellos/Ellas fueron (They went)These are the informal persons. There is also two formal persons in Spanish corresponding to a singular formal you and a plural formal you: usted and ustedes. As it happens with all other verbs, the conjugation for usted is the same as for el (he) and for ustedes is the same as for ellos (they).We then have:Usted fue (Formal you singular)Ustedes fueron (Formal you plural)The verb that follows the exact same conjugation in the preterit tense is ser, the Spanish equivalent of the verb "to be" when it refers to permanent situations.